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which of the following increases the O2 affinity of hemoglobin 3.Which of the fo

ID: 1080215 • Letter: W

Question

which of the following increases the O2 affinity of hemoglobin 3.Which of the following increases the Oz affinity of hemoglobin? a) A drop in the pH of blood plasma from 7.4 to 7.2. b) A decrease in the partial pressure of carbon dioxide in the lungs from 6 kPa (holding one's breath) to 2 kPa (normal). c) An increase in the BPG level from 5 mM (normal altitudes) to 8 mM (high altitudes). d) An increase in CO from 1.0 parts per million (ppm) in a normal indoor atmosphere to 30 ppm in a home that has a malfunctioning or leaking furnace e) Both b) and d)

Explanation / Answer

3. B

The affinity decreases with decreasing pH and increase in BCG and CO. However, the decrease in partial pressure of CO2 increase the oxygen affinity.